Personal Safety & Security Products.

This door stopper alarm comes with a movement sensor. If anyone attempts to move the unit the alarm will immediately activate. (There is a 10 second delay before the movement sensor activates). When traveling, just toss this lightweight unit in your luggage. The on/off switch will prevent it from accidentally sounding. This alarm requires two (2) AA batteries that are not included. The door stop measures 6 inches x 1 and seven-eighth inches x 1 and five-eighth inches.